CHIR-258 is efficacious in a newly developed fibroblast growth factor receptor 3-expressing orthotopic multiple myeloma model in mice.

Purpose: The ectopically expressed and deregulated fibroblast growth factor receptor 3 (FGFR3) results from a t(4;14) chromosomal translocation that occurs in approximately 15% of multiple myeloma (MM) patients and confers a particularly poor prognosis. This study assesses the antimyeloma activity of CHIR-258, a small-molecule inhibitor of multiple receptor tyrosine kinases that is currently in phase I trials, in a newly developed FGFR3-driven preclinical MM animal model.

Experimental Design: We developed an orthotopic MM model in mice using a luciferase-expressing human KMS-11-luc line that expresses mutant FGFR3 (Y373C).

Imaging of bioluminescent LNCaP-luc-M6 tumors: a new animal model for the study of metastatic human prostate cancer.

Background: Animal experiments examining hormone-sensitive metastatic prostate cancer using the human LNCaP cell line have been limited to endpoint analyses. To permit longitudinal studies, we generated a luciferase-expressing cell line and used bioluminescent imaging (BLI) to non-invasively monitor the in vivo growth of primary LNCaP tumors and metastasis.

Methods: LNCaP.